the use of methods employed for estimating the strength and toughness of composites reduces the trial-and-error in their design. the strength of interface between reinforcement and matrix and the effective surface of pulled-out particles have great influences on toughness and strength of these composites. in this study, a model was proposed to estimate the interface strength and matrix strength...

introduction: nowadays , use of library software is a basic need for libraries and information centers. user interface is a part of computerized systems which is interacting to the user and it is an important factor in information searching process. this study aimed to compare librarian's satisfaction rate from library software interface in isfahan libraries in 2010. methods: this was a descrip...

introduction: this study aimed to evaluate the dentin-sealer interface in three different sealers using scanning electron microscopy (sem). methods and materials: thirty extracted human single-rooted teeth were prepared using protaper rotary files and were randomly divided into three groups ( n =10) including bc sealer, ah-plus and dorifill. the root canals were filled with cold lateral condens...

nanocomposite materials, including noble metal nanoparticles embedded in a dielectric host medium, are interesting because of their optical properties linked to surface plasmon resonance phenomena. for studding of nonlinear optical properties and/or energy transfer process, these materials may be excited by ultrashort pulse laser with a temporal width varying from some femtoseconds to some hund...

purpose: to report a case of unilateral aspergillus fumigatus interface keratitis after laser in situ keratomileusis (lasik). case report: a 22-year-old woman developed corneal infiltrates located at the flap- stroma interface in her left eye 48 hours after myopic lasik. the infiltration progressed despite administration of topical fortified antibiotics therefore, the flap was lifted and irriga...

A problem of reflection and transmission of a plane shear wave incident at a corrugated interface between transversely isotropic inhomogeneous and visco-elastic half-spaces is investigated. Applying appropriate boundary conditions and using Rayleigh’s method of approximation expressions for reflection and transmission coefficients are obtained for the first and second order approximation of the...